package chpt_04_lesson_01.log;

import java.text.SimpleDateFormat;

/**
 * @author Ping
 * @date 2023/3/15 10:54
 **/
public interface Log {
    public static final SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss yyyy-MM-dd") ;
    /**
     *
     * @param msg
     */
    public void write(String msg) ;

}
